Subject wasn't worded greatly. After watching an extra on TDK Blu Ray psychologically delving into the psyche of the characters, it really made me want to look further into the characters. Where is a good place to start? Comics or cartoon versions of this that I could find? Maybe from where Joker and Batman first foudn one another? Or not even Joker? Anything related to other characters which depicts the same, dark sense the film gives off. I just want to track the Batman character for a more extensive period.